Aw, that would not be very fair to Doctor's enemies, wouldn't it?I mean when Popeye eats his spinach his fists can literally reshape fabric of reality:POW! Cybermen is caned into can of tuna.ZOP! Dalek is boped into washing machine.BOP! There goes Weeping angel into pile of bricks.

Olive on the other hand is much better companion material: she is romantic, gets into trouble and she would scream very well "HELP! DOCTOR SAVE ME!"Doctor on the other hand would have to deal with Popeye somehow for trying to steal his "dame".

Yeah, if Popeye was the Doctor's companion the Doctor wouldn't even have to do anything. I don't think the Doctor would be very impressed with Olive Oyl though. She's very needy and not independent like you have to be when you're the Doctor's companion.